Callin' 4G61T Owner - Wanna Up boost @ 0.8

[kk9972]

Hi all 61T master,

I still cannot forget the feeling / excitement when I newly bring my car out from garage with 1.2 bar boosting in the street. After that successfully reduce the boost by installing new hose for actuator currently having my stock engine boosting @ 0.5 bar.
Now, I'm feeling itchy and want to up boost @ 0.8 bar (Enough for me as I'm fuel-consious person) and need master's advice for me what to do. Just simply up boost? Or what do I need in the first place in order to do so?

Thanks a lot in advance. :_:

 

[flushafteruse]

stock 4g61t [email protected] still no problem....

 

[GT_AUTO]

just up boost.u need to do nothing if ur aim is 0.8 bar.

 

[SkYwAlKeR]

what about fuel mapping thing??.. it will learn itself after boost up??....

 

[kk9972]

Hi all,
Means that stock engine can withstand @ 1.0 bar without problem? What about long run?

 

[flushafteruse]

more upgrade = more boost
-injector
-bigger turbine
-air flow
-piggyback
-metal gasket

 

[kk9972]

Hi Zurinazwan,
Thanks for your information. That's very helpful. I'm impress what you did, that's awesome!
I've got your number stored. =) Anyway, where you from? I'm from penang.
Actually for my concern, I don't intend to up boost until such high althought that is very exciting. I'm fuel consious people you knows... haha...
From what you did and your experience, do you think that is fine enough if I just up boost until 0.8 without any modification?

 

[ken12292703]

Hi brothers,

I am on the same track too. Want to up boost but in doubt.

Will be good if i install a Exhaust Gas Temperature gauge and Air Fuel Ratio gauge to monitor my engine first before going for the fuel pump and so on?

I am like you too bro, raising little boost only. Since sifu said that raising 0.2 to 0.3 bar on standard engine would be okay, i am not stepping into the large PSSTT yet.

Thank you.

 

[flushafteruse]

better be prepared b4 u do it.....juz my 2cent..

 

[kk9972]

Hi Ken,
What engine is in your monster bay?

 

[ken12292703]

Hi Ken,
What engine is in your monster bay?

Hi bro, mine is a standard stock B8 engine. It's not a monster :confused_smile: . How i wish i can call it monster. :X-: We wait all sifu here help us then can become monsters. :regular_smile:

 

[GT_AUTO]

ken,so how high ur boosting now?

 

[khoyos]

kk, so previously u were boosting 1.2 bar, were u worried?

anyway, to answer ur question, if engine 100% stock, with healthy engine, healthy fuel pump, everything in good condition, 1 bar is the max tolerable limit. beyond 1 bar, still can but risky already... so 0.8 bar is nothing.

p/s but if anything happen, dont sue us ar, we dont know whats the condition of ur engine. some people boost 2 bar no problem, some standard boost also piston melt... depends on ur luck...

 

[ken12292703]

ken,so how high ur boosting now?

Boosting at 0.9bar minimum; turbine changed bigger by previous owner. Unless put wastegate then only can lower the boost. Scary to boost 0.9bar as i have no confidence yet. I have no monitoring gauges as well. Now always vacuum drive. :confused_smile:

 

[ken12292703]

kk, so previously u were boosting 1.2 bar, were u worried?

anyway, to answer ur question, if engine 100% stock, with healthy engine, healthy fuel pump, everything in good condition, 1 bar is the max tolerable limit. beyond 1 bar, still can but risky already... so 0.8 bar is nothing.

p/s but if anything happen, dont sue us ar, we dont know whats the condition of ur engine. some people boost 2 bar no problem, some standard boost also piston melt... depends on ur luck...

Thanks for the advice bro. It means that it might still can tolerate the boost generated. Agree with you, every car is different; like humans. :confused_smile:

 

[kk9972]

Hi Khoyos,
Thanks for the advice. =)
Previously was 1.2bar with no overboosting sign. Means no problem adi (mayb...) So. 0.8 bar should be no problem right?
em.. I will try it out.

Hi Ken,
Haha, I don't wish to be monster. smooth drive, smooth acceleration will do. Especially bypassing the front car.

 

[ken12292703]

Hi Khoyos,
Thanks for the advice. =)
Previously was 1.2bar with no overboosting sign. Means no problem adi (mayb...) So. 0.8 bar should be no problem right?
em.. I will try it out.

Hi Ken,
Haha, I don't wish to be monster. smooth drive, smooth acceleration will do. Especially bypassing the front car.

Yeah, how is your fuel consumption? Mine is very very bad i presume. Off boost with vacuum driving only will cost me RM50 = 120km only. It was running 42psi running engine fuel pressure. :confused_smile:

After searching all over, i decided to do a test. I follow the specification of the stock standard engine and start troubleshooting. Hope i am doing the right thing.
Now running on 35psi engine running. :X-:


Got this from mazda ford enthusiast - malaysia: Forum
Fuel Delivery/Turbocharger System

Description Specification

Fuel Pump Outlet Pressure (Maximum Output, Key ON, Engine Off)
1.3L More than 340 kPa (50 psi)
1.6L 441-588 kPa (64-85 psi)
1.8L 44 1-588 kPa (64-85 psi)
2.0L 44 1-630 kPa (64-92 psi)
2.5L 500-630 kPa (72-92 psi)

Fuel Pump Pressure (Fuel Pump Terminal Grounded, Key ON, Engine Off)
1.3L 265-320 kPa (38-46 psi)
1.6L 255-289 kPa (37-42 psi)
1.8L 265-3 14 kPa (38-46 psi)
2.0L 255-320 kPa (37-46 psi)
2.5L 270-3 10 kPa (39-45 psi)

Fuel Pump Pressure (Key ON, Engine Running, Pressure Regulator Vacuum
Hose Connected)
1.3L 210-260 kPa (30-38 psi)
1.6L 189-231 kPa (27-34 psi)
1.8L 216-264 kPa (31-38 psi)
2.0L 207-262 kPa (30-38 psi)
2.5L 207-248 kPa (30-36 psi )

Fuel Pump Pressure (Key ON, Engine Running, Pressure Regulator Vacuum
Hose Disconnected)
1.3L 265-320 kPa (38-46 psi)
1.6L 249-297 kPa (36-43 psi)
1.8L 275-336 kPa (40-49 psi)
2.0L 269-310 kPa (39-45 psi)
2.5L 269-310 kPa (39-45 psi)

Fuel Pump Volume 1.3L, 1.6L, 1.8L, 2.0L, 2.5L = (5.5 ounces)/10 seconds

Fuel Pump Check Valve Leakage = 2 psi maximum in 3 minutes

Fuel lniector Leakage = 1 drop maximum per 2 minutes

Fuel Injector Resistance = 12-16 ohms

Fuel Pressure Regulator Pressure Leakdown = 34 kPa (5 psi) maximum in 60 seconds

Fuel Pressure Regulator Vacuum Leakage at Valve Seat = 10 in-Hg maximum 10 seconds starting with 20 in-Hg vacuum

SPECIFICATIONS - 1.6L TURBO
Boost Pressure. Maximum 56 kPa (8.1 ~ s i )
Turbo Wastegate - AirPressure to Open 56 kPa (8.1 psi)

http://w.techcapri.com
Copyright (c) 1993, Ford Motor Company 1994
Powertrain Control/Emissions Diagnosis A U9~3

 

[kk9972]

Hi Ken,
That's.. bad. I read and understand that you are buying this car from someone else right? Is it modded?
My car now playing standard. Don't intend to modify until can fly. Yesterday tested with 0.7, very nice. Can feel the power. More than enough for me. =)
My fuel consumption now is full tank (RM 70 +/-) can give around 400KM. Fully highway, with some boosting and high speed @ 140KMH, can do about 460KM per full tank. Fully town with less boost, can go arounf 380KM. Boost here boost there, less than 300KM. haiz... Still consider okay.
So, what is your concern? You gonna re-convert back to original spec? GSR standard boost @ 0.8

 

[ken12292703]

I also don't want to fly. Your consumption is considered good. Mine is really really bad, i don't know what to do. Trying to stick to the stock standard setup as much as possible. Sad~

 

[kk9972]

Hi Ken,
For your case, why not try to change back to TD04 twin blade? Your current turbine which bigger than previous is TD05? If so, maybe you can trade in big turbine to get a smaller turbine. I think Zth-ian here should be happy to exchange with you.
Is Standalone installed? I saw somemore did install standalone and play with stock engine can have a very good fuel consumption. Im thinking to get one as well. May be SAFC.